The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

albaricoque, apricot, damasco, Siberian apricot

bird cherry, European bird cherry, hackberry

Habit Trees, not suckering, 50–100 dm, not thorny. Trees, not suckering, 50–150 dm, not thorny.
Twigs

with axillary end buds, glabrous.

with terminal end buds, glabrous or puberulent.

Leaves

deciduous;

petiole (12–)20–45 mm, glabrous, glandular distally or on margins at bases of blades, glands 1–5;

blade broadly ovate to suborbiculate, (3–)5–9 × (2–)4–8 cm, base usually obtuse to rounded, sometimes truncate or subcordate, margins singly to doubly crenate-serrate, teeth blunt, glandular, apex abruptly short-acuminate, abaxial surface with tufts of hairs in vein axils, adaxial glabrous.

deciduous;

petiole 8–17 mm, glabrous or puberulent on adaxial surface or both surfaces, glandular distally, glands 1–4;

blade elliptic to obovate, 5–10(–13) × 2.5–4.5(–7) cm, base obtuse to rounded or subcordate, margins serrate, teeth ascending to spreading, sharp, eglandular, apex acuminate to abruptly so, lateral veins 10–18 per side, raised abaxially, surfaces glabrous or abaxial hairy in vein axils or along midribs.

Inflorescences

solitary flowers.

15–50-flowered, racemes;

central axes 45–150 mm, leafy at bases.

Pedicels

1–3 mm, hairy.

3–17 mm, glabrous.

Flowers

blooming before leaf emergence;

hypanthium tubular-campanulate, 4–6 mm, glabrous or sparsely hairy externally;

sepals reflexed, oblong-ovate, 4–6 mm, margins remotely glandular-toothed, surfaces sparsely hairy;

petals white (pink in bud), broadly elliptic to suborbiculate, 8–12 mm;

ovaries hairy.

blooming after leaf emergence;

hypanthium cupulate, 2–2.5 mm, glabrous externally;

sepals broadly spreading to reflexed, oblong-ovate, 1.2–2 mm (lengths greater than widths), margins glandular-toothed, surfaces glabrous;

petals white, obovate to suborbiculate, (5–)6–9 mm;

ovaries glabrous.

Drupes

yellow to orange, often tinged with red, ellipsoid to globose, laterally compressed, 25–60 mm, velutinous;

mesocarps fleshy;

stones ellipsoid to subglobose, strongly flattened, not pitted.

black, globose, 6–8 mm, glabrous;

hypanthium deciduous, leaving discs at bases of drupes;

mesocarps fleshy;

stones subglobose, not flattened, rugulose.

2n

= 16.

= 32.

Prunus armeniaca

Prunus padus

Phenology Flowering Mar–Apr; fruiting May–Jul. Flowering Apr–May; fruiting Jul–Aug.
Habitat Roadsides, abandoned plantings Disturbed sites
Elevation 20–1600 m (100–5200 ft) 0–1700 m (0–5600 ft)
Distribution
from FNA
CA; CO; IA; ID; KS; MI; MO; MT; NM; OR; PA; UT; VA; WA; Asia (China) [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; DE; IL; MT; NJ; NY; PA; UT; WA; NB; ON; Eurasia; n Africa [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

Commercial production of apricots in North America is in the western United States, mostly in the San Joaquin Valley of California. There is little market for fresh apricots because of their extremely short shelf life; most fruits are preserved by drying.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Prunus padus is cultivated in North America as an ornamental prized for its long, showy racemes of white flowers and its cold hardiness. Its value in the upper Midwest is often compromised by fungal infection causing black knot disease.

Prunus padus is difficult to distinguish from P. virginiana var. demissa, at least from herbarium material. Induments of hypanthium interior have been widely used in keys to separate the two: hairy in P. padus versus glabrous in P. virginiana. As noted by E. G. Voss (1972–1996, vol. 2), many of the specimens of P. virginiana have a pubescent hypanthium, especially basally. This is true throughout the range of P. virginiana, and also for some specimens of P. serotina. The hypanthia of P. padus are more hairy than those of P. virginiana. The petals of P. padus are longer than those of eastern chokecherry (P. virginiana var. virginiana), making it possible to distinguish flowering specimens from east of the Rocky Mountains. The petals are only slightly longer, on average, than those of P. virginiana var. demissa. Petals of P. padus are also a bit narrower and more elliptic. Shape of sepals may prove useful: 1.2–2 mm with lengths greater than widths in P. padus versus 0.7–1.4 mm with lengths equal to widths in P. virginiana var. demissa. In fruit, the difference between rugulose stones of P. padus and smooth stones of P. virginiana is subtle, perhaps too subtle for those unfamiliar with the range in variation of pit surfaces among these taxa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 375. FNA vol. 9, p. 366.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus
Sibling taxa
P. americana, P. andersonii, P. angustifolia, P. avium, P. caroliniana, P. cerasifera, P. cerasus, P. domestica, P. dulcis, P. emarginata, P. eremophila, P. fasciculata, P. fremontii, P. geniculata, P. glandulosa, P. gracilis, P. havardii, P. hortulana, P. ilicifolia, P. laurocerasus, P. lusitanica, P. mahaleb, P. maritima, P. mexicana, P. minutiflora, P. murrayana, P. myrtifolia, P. nigra, P. padus, P. pensylvanica, P. persica, P. pumila, P. rivularis, P. serotina, P. speciosa, P. spinosa, P. subcordata, P. subhirtella, P. texana, P. tomentosa, P. umbellata, P. virginiana, P. yedoensis
P. americana, P. andersonii, P. angustifolia, P. armeniaca, P. avium, P. caroliniana, P. cerasifera, P. cerasus, P. domestica, P. dulcis, P. emarginata, P. eremophila, P. fasciculata, P. fremontii, P. geniculata, P. glandulosa, P. gracilis, P. havardii, P. hortulana, P. ilicifolia, P. laurocerasus, P. lusitanica, P. mahaleb, P. maritima, P. mexicana, P. minutiflora, P. murrayana, P. myrtifolia, P. nigra, P. pensylvanica, P. persica, P. pumila, P. rivularis, P. serotina, P. speciosa, P. spinosa, P. subcordata, P. subhirtella, P. texana, P. tomentosa, P. umbellata, P. virginiana, P. yedoensis
Synonyms Armeniaca vulgaris
Name authority Linnaeus: Sp. Pl. 1: 474. (1753) Linnaeus: Sp. Pl. 1: 473. (1753)
Web links